Minor: check output with errors in scratch tests

idea/tests/org/jetbrains/kotlin/idea/scratch/AbstractScratchRunActionTest.kt

@@ -106,7 +106,7 @@ abstract class AbstractScratchRunActionTest : FileEditorManagerTestCase() {
             fileName.replace(".kts", ".comp.after")
         }
         val expectedFile = File(testDataPath, expectedFileName)
-        KotlinTestUtils.assertEqualsToFile(expectedFile, actualOutput.toString())
+        KotlinTestUtils.assertEqualsToFile(expectedFile, actualOutput)
     }
 
     protected fun String.inlinePropertiesValues(
@@ -116,7 +116,7 @@ abstract class AbstractScratchRunActionTest : FileEditorManagerTestCase() {
         return replace("~REPL_MODE~", isRepl.toString()).replace("~INTERACTIVE_MODE~", isInteractiveMode.toString())
     }
 
-    private fun getFileTextWithInlays(): StringBuilder {
+    protected fun getFileTextWithInlays(): String {
         val doc = myFixture.getDocument(myFixture.file) ?: error("Document for ${myFixture.file.name} is null")
         val actualOutput = StringBuilder(myFixture.file.text)
         for (line in doc.lineCount - 1 downTo 0) {
@@ -130,7 +130,7 @@ abstract class AbstractScratchRunActionTest : FileEditorManagerTestCase() {
                     )
                 }
         }
-        return actualOutput
+        return actualOutput.toString().trim()
     }
 
     protected fun getInlays(start: Int = 0, end: Int = myFixture.file.textLength): List<InlayScratchFileRenderer> {

idea/tests/org/jetbrains/kotlin/idea/scratch/CustomScratchRunActionTest.kt

@@ -17,11 +17,21 @@ import org.junit.runner.RunWith
 class CustomScratchRunActionTest : AbstractScratchRunActionTest() {
 
     fun testLongCommandLineWithRepl() {
-        assertEquals("RESULT: res0: kotlin.Int = 1", getOutput(true))
+        assertEquals(
+            """|// REPL_MODE: true
+               |// INTERACTIVE_MODE: false
+               |1    // RESULT: res0: kotlin.Int = 1""".trimMargin(),
+            getOutput(true)
+        )
     }
 
     fun testLongCommandLine() {
-        assertEquals("RESULT: 1", getOutput(false))
+        assertEquals(
+            """|// REPL_MODE: false
+               |// INTERACTIVE_MODE: false
+               |1    // RESULT: 1""".trimMargin(),
+            getOutput(false)
+        )
     }
 
     private fun getOutput(isRepl: Boolean): String {
@@ -31,7 +41,7 @@ class CustomScratchRunActionTest : AbstractScratchRunActionTest() {
         launchScratch()
         waitUntilScratchFinishes()
 
-        return getInlays().joinToString().trim()
+        return getFileTextWithInlays()
     }
 
     private val library: Library by lazy {